
Soviet Union (USSR)
The Soviet Union (USSR) was a large, communist state that existed from 1922 to 1991, encompassing Russia and several other republics in Eastern Europe and Central Asia. It emerged after the Russian Revolution, which overthrew the monarchy. The USSR was characterized by a single-party system led by the Communist Party and aimed to promote socialism and state control over the economy. It played a significant role in global affairs, particularly during the Cold War, opposing Western capitalist countries. The Soviet Union dissolved in 1991, leading to the independence of its constituent republics.